Roof Rat Burrows

As the dry ice melts it releases large volumes of carbon dioxide which fills the burrow and suffocates the rats.

Roof rat burrows.

If residents find a rat burrow near the home it most likely belongs to a norway rat not a roof rat. Typical rat burrow the first distinct sign of a rat hole is the size of the entrance. These burrows are often located under bushes or other types of dense vegetation. Rat burrows usually contain a main entrance and 1 or 2 exit holes away from the main entrance.

They prefer to build nests among tree branches or use utility lines to access a roof or attic. As they can gnaw at and chew through metal pipes and plastic they can damage the structure of your house which might take a lot of effort and financial investment to fix. The norway rat digs tunnels to nest because it prefers to be on ground level. However in a hot dry environment roof rats burrow in shallow cavities beneath concrete slabs sidewalks or tree roots.

The last way to kill a rat is to use the protection of the burrow against it. You ll also notice fresh dirt just out of the entrance in a fan shape created when the rodents excavate dirt from the hole. Suffocation agents for rats. Check along walls and grass for runways.

Indoors roof rats like to build nests in the upper areas of the home where it s kept warm by rising heat. Rats create underground pathways or burrows from their nest to food sources and to escape predators. Unlike other rat species roof rats are also good climbers and build nests above ground not underground in burrows. Major cities like chicago have started utilizing this approach by filling the entrance of the burrow with dry ice.